EN 1706 Grade AC-45000 F

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Description

Material EN AC-AlSi6Cu4 is produced as sand and chilled cast. It shows the following casting characteristics and properties: plasticity: good heat crack resistance: good pressure tightness: good workability (after heat-treatment): good corrosion resistance: insufficient decorative anodic oxidation: insufficient weldability: acceptable polishability: good strength at room temperature: insufficient strength at increased temp. (up to 200°C): excellent ductility (impact strength): acceptable fatigue strength amounts 60 to 90 N/mm² ( best available casting method, values for vibration durability up to 50*10 hoch 6 cycles [Woehler diagram]). To the comparable DIN-mark G-AlSi6Cu4, mat. No. 3.2151, acc. to DIN 1725-2 : 1986-02 applies: The material is a well castable all-round alloy, high machinability, heat-resistant and mostly unhardened. Application: machine and engine parts for vehicle industry, electrical engineering, mining.

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Properties

General

Density

ρ

2.75 g/cm³ at 20 °C

Mechanical

Elastic modulus

E

74 GPa at 20 °C

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Elongation A50

A50

1 % at 20 °C

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Hardness, Brinell

HB

60 - 75 [-] at 20 °C

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Poisson's ratio

ν

0.33 [-] at 20 °C

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Typical for Cast 3xx.x Series Aluminium

Shear modulus

G

2.8 GPa at 20 °C

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Typical for Cast 3xx.x Series Aluminium

Tensile strength

Rm

150 - 170 MPa at 20 °C

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Yield strength Rp0.2

Rp0.2

90 - 100 MPa at 20 °C

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Thermal

Coefficient of thermal expansion

α

2.2E-5 1/K at 20 °C

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Melting point

Tm

490 - 620 °C

Specific heat capacity

cp

880 J/(kg·K) at 20 °C

Thermal conductivity

λ

110 - 120 W/(m·K) at 20 °C

Electrical

Electrical conductivity

σel

1.40E+7 - 1.70E+7 S/m at 20 °C

Electrical resistivity

ρel

5.88E-8 - 7.14E-8 Ω·m at 20 °C

Chemical properties

Element

Weight %

Comment

Other

-

each 0.05, total 0.35, Rest Al

Al

82.15 %

Si

5 - 7 %

Cu

3 - 5 %

Zn

2 %

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Technological properties

Anodizing

decorative: not sufficient

Corrosion properties

general: not sufficient

General machinability

after thermal treatment: good

Processing methods

permanent mould casting, separately cast test sample

This material data has been provided by WIAM,AluKey.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.